Disc storage device



FIG. 1 is a front view of a “disc storage device” incorporating my design;

FIG. 2 is a rear view thereof;

FIG. 3 is an elevation view thereof from the left side;

FIG. 4 is an elevation view thereof from the right side;

FIG. 5 is a top view thereof;

FIG. 6 is a perspective view thereof from the top right side; and,

FIG. 7 is a perspective view thereof, but shown in an alternative configuration and with additional storage units.

The broken lines shown form no part of the claimed design. 

The ornamental design for a “disc storage device”, as shown and described. 